Browsing is a valuable way to learn about birds, however it is a brute force approach and not designed for identification.
A more sophisticated approach to finding a bird with specific field marks is to use the Step by Step Search.
You can also try the Wizard to find a bird, which uses a question and answer approach, but again it does not give you the flexibility of the Step by Step Search.

Mitred Parakeet: This fairly large green parakeet has a red forehead grading into scattered bright red feathers on the crown, face, cheek, and at times on the bend in the wing. Its dull green underparts are faintly washed olive, the hooked bill is dull yellow, and the legs and feet are gray. It feeds on fruits, berries and nuts. It has a fast direct flight with rapid wing beats. Sexes are similar.

Slate-throated Redstart: Medium warbler with slate-gray upperparts, black face, throat, red breast, belly, and chestnut-brown crown. The tail is slate-gray with white edges and the wings are black. Insects make up most of its diet caught on the wing and it also forages on the ground.

Scarlet Ibis: This nervous and wary South American species was introduced in Florida and is unmistakable with its bright scarlet plumage, pink skin on face, pink bill and red legs. Black primaries are seen only in flight. Often breeds with the White Ibis producing various shades of pink offspring.

Hawaii Akepa: This is a small songbird with black wings and tail. The rest of the plumage of the male is orange-red, and that of the female is olive with gray on the front and back. It has a narrow, conical bill with slightly crossed or offset mandibles. It feeds on insects and spiders, though its diet consists mainly of caterpillars. It has an undulating flight.
Name was changed from Akepa to Hawaii Akepa in 2015 by the American Ornithologist Union.

Iiwi: This small bird has vibrant red plumage overall with black wings and tail. The wings show a contrasting white patch on the inner secondaries. The salmon-colored bill is long and decurved. Undulating flight, alternates several rapid wing beats with wings pulled to sides. It feeds primarily on nectar but feeds on many insects and spiders as well. Males are slightly larger than females.

Apapane: This is a small songbird with dark red plumage overall, a white vent and underbelly, and black wings and tail. The black bill is medium in length and decurved. It has an undulating flight, alternating several rapid wing beats with wings pulled to the sides. Apapane are primarily nectarivorous but occasionally take insects and spiders. Both sexes look similar.

Pine Grosbeak: Large, robust finch with red-washed black back, gray sides and undertail coverts, and pink-red rump and underparts. Head and face are pink-red; bill is heavy and black. Wings are black with two pale bars. Tail is black and slightly notched. Feeds on seeds, buds, fruits and insects.

House Finch: This medium-sized finch has brown-streaked back and wings, and brown-streaked white underparts. The head, throat and rump are typically pink-red; yellow to orange variants may occur. The tail is long and weakly notched. The female is brown-streaked overall. The bill is short and slightly decurved. Feeds mostly on seeds; takes some insects and fruits. It has a swift bounding flight.

Northern Cardinal: This large crested finch has a vivid red body. The black mask and chin contrast with a heavy red bill. Female is duller overall, with red wings and tail washed with gray, and smaller crest. Forages on the ground in trees and bushes. Feeds on seeds, grains, fruits, insects and snails. Hops instead of walking on the ground. Alternates rapid wing beats with wings pulled to sides.

Red-headed Woodpecker: Medium-sized woodpecker with black upperparts and tail, and white underparts and rump. The head, throat, and upper breast are dark red. Wings are black with large white patches. Bill, legs and feet are black. This is the only woodpecker in the east with a completely red head.

Summer Tanager: Large tanager, dark-red overall with a large, pale gray bill. Legs and feet are gray. It is the only entirely red bird in North America. Female has olive-yellow upperparts and dull yellow underparts. Some red morph females have a red wash, red splotches, or are entirely red. It specializes in eating bees and wasps, which is why it is also known as the bee bird. Swift direct flight with quick wing strokes.